High Voltage Multiplexer for the DMM-261

The DNA/DNR/DNF-MUX-461-350 provides 24 two-wire or 12 four-wire multiplexers for the DNx-DMM-261 DMM board. All connections are made inside the Cube or RACKtangle so the only connections you need to make are to the various channels on the board. Up to five of the boards may be daisy chained within the Cube/RACK chassis providing up to 120 two-wire or 60 four-wire channels in a single chassis. Larger systems are possible though will require the DMM-261 to MUX-461 interconnection external to the chassis itself.

The MUX-461 boards are designed for use in a wide variety of switching and digital control applications. Each channel is capable of switching voltages up to ±350 VDC or AC and is rated for continuous operation at 500 mA DC or AC rms with a switch resistance of less than 4.0 Ohm (not including external cables).

The relays are solid state so they are not limited by a maximum number of operations. All relays default to “open” on power up/reset. Switching rates up to 500 Hz are supported. Each board provides 350 VDC isolation between channels, and between the board, cube and other installed I/O boards.

A digital trigger input is provided at the I/O connector and can be used to initiate channel switches. A digital trigger output provides the relay status (in transition or stable).

MUX-461 series boards may be connected to DNx-DMM-261 series DMMs totally within the DNA or DNR chassis. In the DNA Cubes, the MUX-461 is connected to the DMM-261 by a set of internal connectors that connect to the board above (and/or below). In DNR chassis, a special cable is used to connect MUX-461 series board together as well as to the DMM-261.

All field-wiring connections are made through a convenient 62-pin D connector ensuring no problems obtaining mating cables or connectors. Users may also connect the DNx-MUX-461 boards to our popular DNA-STP-62 screw terminal panel via the DNA-CBL-62 cables.The cables are shielded and available in 1, 3, 10 and 20 foot lengths.

The DNx-MUX-461 series includes software drivers supporting all popular operating systems including: Windows, Linux, QNX, VXWorks, RTX, and more. Windows users may take advantage of the powerful UEIDAQFramework which provides a simple and complete software interface to all popular Windows programming languages and data acquisition and control applications (e.g. LabVIEW, MATLAB).